View clinical trials related to Celiac Disease.
Filter by:Celiac disease is a condition in which the small intestine is damaged by gluten, the storage protein of wheat and similar proteins in barley and rye. The disease can cause different symptoms such as diarrhea, bloating, abdominal pain and weight loss. The majority of patients respond to a gluten-free diet. However some patients (5-30%) have persistent symptoms and are considered to be poor responders to the diet. Bacterial overgrowth in the small intestine accounts for some of the refractory patients. This study seeks to determine if antibiotic therapy with rifaximin relieves the symptoms of patients who are poorly responsive to a gluten-free diet and whether this impacts their breath test results.
The celiac disease (CD) is a disease with an immune and genetic component that is activated by the presence of gluten, and damages the intestine mucosa and causes malabsorption of food. In the oral environment the investigators see enamel defects and recurrent ulcers. Celiac patients have to keep a restrict gluten-free diet, in order to prevent the clinical symptoms of the disease (such as diarrhea, stomach ache and weight loss). It has been assumed that the patients have less cariogenic diet, and that caries prevalence is not as high as in normal population. In celiac patients the investigators find enamel defects that are characterized with pits and deep fissures and sometimes the complete loss of enamel. These defects are classified by the grading of the CD related DED's (dental enamel defects) according to Aine. These defects are symmetrical defects in the permanent dentition, in teeth that develops at the same time. The cause is thought to be hypocalcaemia or genetic. These defects were found in 42.2% of celiac patients in appose to only 5.4% in healthy population. Recurrent ulcers were found in 41% in the oral cavity of celiac patients, compare to 27% in healthy population. After changing the diet to a gluten-free diet, an improvement is seen in the presence of these ulcers.
The main purpose of this study is to evaluate the natural history of celiac disease in asymptomatic, screen-detected subjects having positive endomysial antibodies and the effects of an intervention with a gluten-free diet. The investigators hypothesize that these subjects may have decreased general health and benefit of the dietary treatment regardless of the small-bowel mucosal structure.
The investigators will evaluate the use of an HLA-DQ2-gliadin tetramer for staining of gluten specific T cells in the diagnostics of uncertain celiac disease. Some patients have started on a gluten free diet without a diagnosis of celiac disease. Subsequent later investigation in special care is difficult as the patients often are reluctant to prolonged gluten challenge. The investigators use the HLA-DQ2-gliadin tetramers for detection of gluten specific T cells after a short gluten challenge. By this method the investigators search to discriminate between true celiac disease and clinical gluten intolerance without celiac disease, in a population of HLA-DQ2+ persons already on a gluten free diet without a formal diagnosis of celiac disease.
The specific hypotheses are: Gluten supplementation for four weeks increases small intestinal permeability and accelerates colonic transit in patients with irritable bowel syndrome with diarrhea (IBS-D) or functional diarrhea (FD) who are HLA-DQ2 positive.
Withdrawal of gluten, the culprit antigen, is the definite treatment for celiac disease. Weeks to months after gluten withdrawal from the diet before the clinical manifestations, histological features start improving. Many of the adult patients are in the critical phase where even weeks may matter especially those in their adolescence where height growth has limited potential. Suppression of immune system using a short course of steroid might retard the immune mediated destruction of the villi while the effect of gluten withdrawal sets in. Steroids are known to be effective in the management of refractory celiac disease. Therefore, the investigators hypothesized that addition of a short course of steroid to gluten free diet may enhance intestinal mucosal recovery and thus clinical manifestations
Computer-aided image recognition will improve the technique of endoscopic ultrasound-celiac plexus block/celiac plexus neurolysis (EUS-CPB/CPN) and improved pain relief.
The purpose of this study is to examine whether a cocktail of two common food-grade enzyme supplements leads to decrease of serum activity markers in celiac disease patients insufficiently treated by previous gluten exclusion.
A phase 2a study to evaluate the safety and efficacy of ALV003 to treat celiac disease.
1. The purpose of this research study is to evaluate non-invasive markers of celiac disease activity in subjects that are on a gluten-free diet, in remission from celiac disease who undergo gluten challenge. 2. The secondary aims of this protocol are to identify novel mediators important in the pathophysiology of celiac disease and to evaluate changes in metabolism with gluten exposure.